The stock was up around 16.92% at $57.19 on Monday.
The company reported fourth-quarter earnings of $92.1 million, or $1.67 a share, matching per-share earnings from a year earlier. Analysts were expecting $1.47 a share, according to FactSet.
The company reported revenue of $2.31 billion, up from $1.87 billion in the prior-year period, and below analysts' expectations $2.63 billion, according to Bloomberg.
Of the 10 analysts polled by FactSet, the consensus rating pn Thor is overweight with a price target of $62.11.
Headquartered in Elkhart, Ind., the dividend payer has a yield of 2.7%.
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